2311325666 has 16 divisors (see below), whose sum is σ = 3789409344. Its totient is φ = 1050843024.

The previous prime is 2311325659. The next prime is 2311325671. The reversal of 2311325666 is 6665231132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661670 + ... + 665153.

It is an arithmetic number, because the mean of its divisors is an integer number (236838084).

Almost surely, 2^2311325666 is an apocalyptic number.

2311325666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2311325666 is a deficient number, since it is larger than the sum of its proper divisors (1478083678).

2311325666 is a wasteful number, since it uses less digits than its factorization.

2311325666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326905.

The product of its digits is 38880, while the sum is 35.

The square root of 2311325666 is about 48076.2484601284. The cubic root of 2311325666 is about 1322.1692343330.

Adding to 2311325666 its reverse (6665231132), we get a palindrome (8976556798).

The spelling of 2311325666 in words is "two billion, three hundred eleven million, three hundred twenty-five thousand, six hundred sixty-six".